title: Dimensionality and confinement effects in δ-doped Pd(Fe) layers.
abstract: We address the dimensionality aspects of the magnetic ordering in δ-doped Pd(Fe) structures. The key property we investigate, via magneto-optic Kerr measurements, is the magnetization induced by iron in palladium, over a wide temperature range 5 K < T < 300 K. The dimensional crossover we observe cannot be rationalized on the basis of structural considerations alone, since we find the dimensionality of the low temperature and of the critical region can differ. We discuss the crossover in terms of the temperature dependence of the magnon modes, giving rise to lower dimensionality at low temperatures.
authors.affiliation: Department of Physics and Astronomy, Materials Physics Division, Uppsala University, Box 516, 751 20 Uppsala, Sweden.
authors.forename: Evangelos Th
authors.initials: ET
authors.lastname: Papaioannou
authors.forename: Vassilios
authors.initials: V
authors.lastname: Kapaklis
authors.forename: Andrea
authors.initials: A
authors.lastname: Taroni
authors.forename: Moreno
authors.initials: M
authors.lastname: Marcellini
authors.forename: Björgvin
authors.initials: B
authors.lastname: Hjörvarsson